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Motorola Field Tests Wireless Broadband At 300Mbps

Posted by timothy on from the are-we-there-yet-are-we-there-yet-are-we-there-yet dept.

cft_128 writes "Motorola Labs just finished field testing its new ODFM (Orthogonal Frequency Division Multiplexing) wireless broadband technology that prove it can attain 300Mbps. This is only a test, but it is an order of magnitude faster than the fiber to the premises that Verizon is now starting to offer. They do mention that the final network would only see 20Mbps sustained and 100Mbps peak."

3 of 138 comments (clear)

  1. ODFM???? by gotr00t · · Score: 4, Informative
    Wouldn't it actually be called OFDM because its supposed to be an acronym for "Orthogonal Frequency Division Multiplexing?"

    (referring to the text in the article)

  2. 300Mps On Its Own Is Meaningless by femto · · Score: 4, Informative
    300Mps in the lab is meaningless. If you have a GHz of spectrum available one can easily achieve 300Mbit/s using 20 year old technology.

    The proper question is "What is the spectral efficiency?"

    Spectral efficiency is a measure of the data throughput per unit of bandwidth. It is measured in bits per second per Hertz (bit/s/Hz).

    Existing WLANS get around 4-5 bit/s/Hz under ideal conditions. State of the art lab demonstrations get in the range 20-40 bit/s/Hz. To put this in context, 20-40 bit/s/Hz is the equivalent of >400Mbit/s in an existing 22MHz WiFi channel.

    So, does anyone know the spectral efficiency of Motorola's system?

  3. We've got that beat in Japan by putaro · · Score: 4, Informative

    Shared wireless bandwidth doesn't sound that appealing. I just upgraded my home DSL service here in Tokyo to 24Mbps (over copper). Yahoo BB is offering 45Mbps over copper. And, you can get fiber at 100Mbps (http://www.asahi-net.or.jp/en/tepco.html) from TEPCO (the electrical utility).

    I suspect that one of the reasons this is available here is the incredible density you find in Tokyo. I'm about 3 blocks away from the local CO. Rural areas probably are not getting these speeds

    Of course, the key question is what's upstream from you - right now I'm only pulling down 800Kbps across several BitTorrent downloads so your mileage will definitely vary.